Started on user day entry

t/api/user.t

@@ -0,0 +1,56 @@
+use Mojo::Base -strict;
+
+use Test::More;
+use Mojo::JSON;
+use Test::Pear::LocalLoop;
+use DateTime;
+
+my $framework = Test::Pear::LocalLoop->new;
+my $t = $framework->framework;
+my $schema = $t->app->schema;
+
+my $account_token = 'a';
+my $email = 'test@example.com';
+my $password = 'abc123';
+
+$schema->resultset('AccountToken')->create({
+  name => $account_token
+});
+
+$framework->register_customer({
+  'token' => $account_token,
+  'name' =>  'Test User',
+  'email' => $email,
+  'postcode' => 'LA1 1AA',
+  'password' => $password,
+  'age_range' => 1
+});
+
+my $session_key = $framework->login({
+  email => $email,
+  password => $password,
+});
+
+my $json_no_date = { session_key => $session_key };
+$t->post_ok('/api/user/day', json => $json_no_date)
+  ->status_is(200)
+  ->json_is('/success', Mojo::JSON->true);
+
+my $json_invalid_date = {
+  session_key => $session_key,
+  day => 'invalid',
+};
+$t->post_ok('/api/user/day', json => $json_invalid_date)
+  ->status_is(400)->or($framework->dump_error)
+  ->json_is('/success', Mojo::JSON->false)
+  ->json_like('/message', qr/Invalid ISO8601 Datetime/);
+
+my $json_valid_date = {
+  session_key => $session_key,
+  day => $t->app->datetime_formatter->format_datetime(DateTime->now),
+};
+$t->post_ok('/api/user/day', json => $json_valid_date)
+  ->status_is(200)->or($framework->dump_error)
+  ->json_is('/success', Mojo::JSON->true);
+
+done_testing;